20220111112021 has 32 divisors (see below), whose sum is σ = 21030195363840. Its totient is φ = 19429316424000.

The previous prime is 20220111112001. The next prime is 20220111112039. The reversal of 20220111112021 is 12021111102202.

It is a cyclic number.

It is not a de Polignac number, because 20220111112021 - 2⁵ = 20220111111989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220111111986 and 20220111112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220111112001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1284705970 + ... + 1284721708.

It is an arithmetic number, because the mean of its divisors is an integer number (657193605120).

Almost surely, 2^{20220111112021} is an apocalyptic number.

It is an amenable number.

20220111112021 is a deficient number, since it is larger than the sum of its proper divisors (810084251819).

20220111112021 is a wasteful number, since it uses less digits than its factorization.

20220111112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18145.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20220111112021 its reverse (12021111102202), we get a palindrome (32241222214223).

The spelling of 20220111112021 in words is "twenty trillion, two hundred twenty billion, one hundred eleven million, one hundred twelve thousand, twenty-one".